Anti-rollout assemblies and systems for cargo handling system

ABSTRACT

An anti-rollout assembly may comprise: a housing defining a cavity; a guide/restraint head pivotably coupled to the housing at a first end of the cavity; an overridable trigger pivotably coupled to the housing at a second end of the cavity, the second end opposite the first end; and a locking system operably coupled to the guide/restraint head and the overridable trigger, the locking system configured to bias the guide/restraint head into an upright position, the locking system configured to retract the guide/restraint head into the cavity in response to a first lateral force driving the overridable trigger. The locking system may comprise a drive link and a locking link and be configured to lock the guide/restraint head in a raised state.

FIELD

The disclosure relates generally to anti-rollout assemblies, and moreparticularly, to systems and devices for preventing cargo rollout incargo handling systems.

BACKGROUND

Rollers, casters, and other wheeled mechanisms are often used to conveyloads. In an entrance area of a cargo handling system, the cargohandling system may include an overridable component configured toprevent cargo from traveling back out the doorway once loaded. Theoverridable component may be limited in size by the storage housing forthe overridable component. The restraint face of the overridablecomponent may be limited by a retraction direction of the overridablecomponent.

SUMMARY

An anti-rollout assembly is disclosed herein. The anti-rollout assemblymay comprise: a housing defining a cavity; a guide/restraint headpivotably coupled to the housing at a first end of the cavity; anoverridable trigger pivotably coupled to the housing at a second end ofthe cavity, the second end opposite the first end; and a locking systemoperably coupled to the guide/restraint head and the overridabletrigger, the locking system configured to bias the guide/restraint headinto an upright position, the locking system configured to retract theguide/restraint head into the cavity in response to a first lateralforce driving the overridable trigger.

In various embodiments, the locking system further comprises a lockinglink and a driving link. The driving link may be pivotably coupled tothe overridable trigger and slidingly coupled to the guide/restrainthead. The locking link may be pivotably coupled to the housing or theoverridable trigger and configured to interface with a mating surface ofthe guide/restraint head when the guide/restraint head is in a raisedstate. The locking system may further comprise a pin fixedly orrotatably coupled to the driving link, the pin configured to interfacewith a notch generated by a tab in the locking link in response to theanti-rollout assembly being in a raised state. The pin may be configuredto drive the locking link down in response to rolling or sliding overthe tab during lowering of the guide/restraint head. The guide/restrainthead may comprise a guide face, and the locking link locks theguide/restraint head in the upright position in response to a secondlateral force being exerted on the guide face. The guide/restraint headmay further comprise a first roller or a first tapered surface on afirst longitudinal end of the guide/restraint head and a second rolleror second tapered surface on a second longitudinal end of theguide/restraint head. The first roller may be configured to guide a tabof a pallet toward the guide face in response to the pallet travelinglongitudinally along a cargo deck.

An anti-rollout system for use in a cargo handling system is disclosedherein. The anti-rollout system may comprise: a cargo deck having anentranceway; and an anti-rollout assembly coupled to the cargo deck anddisposed proximate the entranceway, the anti-rollout assembly beingbiased towards a raised position, the anti-rollout assembly configuredto retract into an overridable position in response to a cargo travelingover the anti-rollout assembly during loading, the anti-rollout assemblyconfigured to arise to the raised position in response to the cargotraveling past the anti-rollout assembly in a first direction.

In various embodiments, the anti-rollout assembly may further comprise:a first overridable trigger disposed proximate the entranceway; a firstguide/restraint head having a first guide face defining the firstdirection when the first guide/restraint head is in a raised state, thefirst guide/restraint head disposed distal to the first overridabletrigger in the lateral direction; a second overridable trigger disposeddistal to the first guide/restraint head in the lateral direction; and asecond guide/restraint head disposed distal to the second overridabletrigger in the lateral direction. The first overridable trigger may beconfigured to retract the first guide/restraint head in response to afirst lateral force being disposed on the first overridable trigger; andthe second overridable trigger is configured to retract the secondguide/restraint head in response to a second lateral force beingdisposed on the second overridable trigger. The anti-rollout system mayfurther comprise a plurality of the anti-rollout assembly spacedlongitudinally along the entranceway. The anti-rollout assembly mayfurther comprise a first locking system and a second locking system, thefirst locking system operably coupling the first overridable trigger tothe first guide/restraint head, the second locking system operablycoupling the second overridable trigger to the second guide/restrainthead. The anti-rollout assembly may further comprise: a housing coupledto the cargo deck, the housing defining a cavity; a guide/restraint headpivotably coupled to the housing; an overridable trigger pivotablycoupled to the housing, the overridable trigger configured to rotate ina first direction in response to a first lateral force driving theoverridable trigger, wherein the guide/restraint head is configured torotate in a second direction in response to the overridable triggerrotating in the first direction, the first direction being opposite thesecond direction. The guide/restraint head may be driven into theoverridable position in response to the cargo traveling over theoverridable trigger.

A method of using an anti-rollout system is disclosed herein. The methodmay comprise: sliding a cargo in a lateral direction through anentranceway of a cargo handling system; rotating an overridable triggerof an anti-rollout assembly in a first direction in response to thecargo exerting a lateral force on the overridable trigger; rotating aguide/restraint head of the anti-rollout assembly in a second directionin response to the overridable trigger rotating the first direction, thefirst direction being opposite the second direction; retracting theanti-rollout assembly into a overridable position in response to thecargo traveling over the anti-rollout assembly; and arising theanti-rollout assembly into a raised position in response to the cargopassing the anti-rollout assembly in the lateral direction.

In various embodiments, the method may further comprise sliding thecargo in a longitudinal direction through a cargo compartment; andguiding a tab of a pallet of the cargo to a guide face of theguide/restraint head in response to sliding the cargo in thelongitudinal direction. The anti-rollout assembly may be locked in theraised position in response to the cargo exerting a force on theanti-rollout assembly in the lateral direction. The anti-rolloutassembly may comprise a locking system operably coupled to theguide/restraint head and the overridable trigger.

The forgoing features and elements may be combined in variouscombinations without exclusivity, unless expressly indicated hereinotherwise. These features and elements as well as the operation of thedisclosed embodiments will become more apparent in light of thefollowing description and accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The subject matter of the present disclosure is particularly pointed outand distinctly claimed in the concluding portion of the specification. Amore complete understanding of the present disclosure, however, may bestbe obtained by referring to the following detailed description andclaims in connection with the following drawings. While the drawingsillustrate various embodiments employing the principles describedherein, the drawings do not limit the scope of the claims.

FIG. 1 illustrates an aircraft being loaded with cargo, in accordancewith various embodiments;

FIG. 2 illustrates a portion of an aircraft cargo deck having ananti-rollout system, in accordance with various embodiments;

FIG. 3 illustrates an axonometric view of an anti-rollout assembly, inaccordance with various embodiments;

FIG. 4 illustrates a top view of an anti-rollout assembly, in accordancewith various embodiments;

FIG. 5A illustrates a cross-sectional view along section A-A of FIG. 4of an anti-rollout assembly in a raised state, in accordance withvarious embodiments;

FIG. 5B illustrates a cross-sectional view along section A-A of FIG. 4during retraction of the anti-rollout assembly in accordance withvarious embodiments;

FIG. 5C illustrates a cross-sectional view along section A-A of FIG. 4during retraction of the anti-rollout assembly in accordance withvarious embodiments;

FIG. 5D illustrates a cross-sectional view along section A-A of FIG. 4during retraction of the anti-rollout assembly in accordance withvarious embodiments;

and

FIG. 6 illustrates a cross-sectional view along section B-B of FIG. 4 ofan anti-rollout assembly in a raised state, in accordance with variousembodiments.

DETAILED DESCRIPTION

The following detailed description of various embodiments herein makesreference to the accompanying drawings, which show various embodimentsby way of illustration. While these various embodiments are described insufficient detail to enable those skilled in the art to practice thedisclosure, it should be understood that other embodiments may berealized and that changes may be made without departing from the scopeof the disclosure. Thus, the detailed description herein is presentedfor purposes of illustration only and not of limitation. Furthermore,any reference to singular includes plural embodiments, and any referenceto more than one component or step may include a singular embodiment orstep. Also, any reference to attached, fixed, connected, or the like mayinclude permanent, removable, temporary, partial, full or any otherpossible attachment option. Additionally, any reference to withoutcontact (or similar phrases) may also include reduced contact or minimalcontact. It should also be understood that unless specifically statedotherwise, references to “a,” “an” or “the” may include one or more thanone and that reference to an item in the singular may also include theitem in the plural. Further, all ranges may include upper and lowervalues and all ranges and ratio limits disclosed herein may be combined.

In various embodiments, an anti-rollout assembly for use in a cargohandling system is disclosed herein. In various embodiments, theanti-rollout assembly may be configured to retract in response to cargotraveling into a cargo entranceway. In various embodiments, theanti-rollout assembly may be configured to prevent rollout of cargo inresponse to being in a non-retracted state. In various embodiments, theanti-rollout assembly may comprise a guide/restraint head, anoverridable trigger, and a locking system. In various embodiments, thelocking system may comprise a locking link and a guide element (e.g., aguide pin).

With reference to FIG. 1, an aircraft 10 is illustrated having a cargocompartment 12. A cargo door 14 provides access to cargo compartment 12from outside aircraft 10. In various embodiments, cargo 16 may comprisea pallet 20, which may be loaded and unloaded through cargo door 14 andonto a cargo deck 18 of aircraft 10. In various embodiments, the pallet20 may comprise a plurality of tabs 22 disposed around a perimeter ofthe pallet 20. In various embodiments, a gap between adjacent tabs inthe plurality of tabs 22 may cause a guide/restraint head to wear duringloading of a cargo compartment 12 as described further herein. Invarious embodiments, cargo deck 18 may be equipped with one or morepower drive units (PDUs) configured to propel cargo 16 across cargo deck18 in a desired direction.

With reference to FIG. 2, a cargo handling system 50 including a cargoentranceway 60 of the cargo deck 18 is illustrated, in accordance withvarious embodiments. The cargo deck 18 may include one or more casterpanels 24. Although shown with caster panels 24, the cargo handlingsystem may comprise ball mats, in various embodiments. Caster panels 24may include a plurality of freely rotating casters 26. In variousembodiments, a number of PDUs may be mounted along cargo deck 18. Forexample, PDUs 28 may be located in caster panels 24. PDUs are configuredto propel cargo over conveyance casters 26 across cargo deck 18. Invarious embodiments, the cargo handling system 50 includes ananti-rollout system 80 having a plurality of anti-rollout assemblies 100spaced apart longitudinally (e.g., X direction) proximate cargo door 14from FIG. 1.

In various embodiments, each anti-rollout apparatus in the plurality ofanti-rollout assemblies 100 are configured to retract in response to acargo 16 from FIG. 1 rolling over the respective anti-rollout apparatusin the lateral direction (e.g., the Y direction) and arise in responseto the cargo 16 from FIG. 1 passing a respective anti-rollout apparatusin the lateral direction (e.g., the Y direction). The number ofanti-rollout apparatuses per anti-rollout assembly in the plurality ofanti-rollout assemblies 100 is not limited to two, as illustrated inFIG. 2. In various embodiments, each anti-rollout assembly 100 includesa first guide/restraint head 110, a first overridable trigger 112, afirst locking system 114, a second guide/restraint head 120, a secondoverridable trigger 122, and a second locking system 124. The firstguide/restraint head 110 may be disposed proximate cargo door 14 fromFIG. 1 and the second guide/restraint head 120 may be spaced apartlaterally (e.g., in the Y-direction) distally from the cargo door 14from FIG. 1. In various embodiments, by having multiple guide/restraintheads per anti-rollout assembly in the plurality of anti-rolloutassemblies 100, a number of different size cargo (e.g., cargo 16 ofvarious sizes) may be utilized by the cargo handling system 50.

In various embodiments, cargo 16 from FIG. 1 is loaded in a lateraldirection (e.g., Y direction) into the cargo entranceway 60. In variousembodiments, the first overridable trigger 112 drives the first lockingsystem 114 and the first guide/restraint head 110, which retracts thefirst guide/restraint head 110 into a housing of a respectiveanti-rollout assembly in response to cargo 16 from FIG. 1 rolling overthe respective overridable trigger 112. In various embodiments, thefirst guide/restraint head 110 arises in response to the cargo 16 fromFIG. 1 passing the first guide/restraint head 110 in the lateraldirection (e.g., the Y-direction), as described further herein. Invarious embodiments, the second guide/restraint head 120, the secondoverridable trigger 122, and the second locking system 124 areconfigured in the same manner as the first guide/restraint head 110, thefirst overridable trigger 112, and the first locking system 114.

Referring now to FIGS. 3 and 4, an anti-rollout assembly 200 having asingle guide/restraint head 210 is illustrated in a raised state, inaccordance with various embodiments. FIG. 3 illustrates an axonometricview of the anti-rollout assembly 200, and FIG. 4 illustrates a top viewof the anti-rollout assembly 200, in accordance with variousembodiments. In various embodiments, the anti-rollout assembly 200comprises the guide/restraint head 210, an overridable trigger 220, alocking system 230, and a housing 240. In various embodiments, theguide/restraint heads 110, 120 from FIG. 2 are in accordance with theguide/restraint head 210, the overridable triggers 112, 122 are inaccordance with the overridable trigger 220, and the locking systems114, 124 are in accordance with the locking system 230. Althoughillustrated as having only a guide/restraint head 210, the anti-rolloutassembly 200 is not limited in this regard, and the anti-rolloutassembly 200 could include a plurality of the guide/restraint head 210(e.g., first guide/restraint head 110 and second guide/restraint head120 as illustrated in FIG. 2), in accordance with various embodiments.

The locking system 230 may comprise a drive link 234, a locking link232, and a pin 236. In various embodiments, the locking link 232 maycomprise a first arm 231 and a second arm 233. Although illustrates ashaving two arms 231, 233, the locking link is not limited in thisregard. For example, the locking link 232 could include a single arm, inaccordance with various embodiments. The drive link 234 may extend froma first end of the overridable trigger 220 to a first end of theguide/restraint head 210. The locking link 232 may be pivotably coupledto the housing 240 proximate a first end 242 of the housing 240.

In various embodiments, the guide/restraint head 210 is operably coupledto the overridable trigger 220 via the locking system 230. Inparticular, in various embodiments, the drive link 234 is pivotablycoupled to the overridable trigger 220 via a pin or the like, slidinglycoupled to the guide/restraint head 210 via a pin, or the like, andconfigured to retract the guide/restraint head 210 into the housing 240in response to experiencing a force in the lateral direction (e.g., the+Y-direction). In various embodiments, at an end of the overridabletrigger 220 proximal the housing 240, the drive link is pivotablycoupled to the overridable trigger 220 via a pin, or the like. Invarious embodiments, at an end proximal the housing, the guide/restrainthead 210 and the drive link 234 are slidingly coupled.

In various embodiments, the guide/restraint head 210 comprises a guideface 212, a first roller 214, and a second roller 216. Althoughillustrated as including a first roller 214 and a second roller 216, theanti-rollout assembly is not limited in this regard. In particular, invarious embodiments, the guide/restraint head may include the guide face212 and tapered ends where the first roller 214 and the second roller216 are illustrated. In various embodiments, the first roller 214 may bedisposed on a first longitudinal end of the guide/restraint head 210 andthe second roller 216 may be disposed on a second longitudinal end ofthe guide/restraint head 210, the second longitudinal end disposedopposite the first longitudinal end. In various embodiments, the rollers214, 216 may be configured to act as a guide for a pallet (e.g., pallet20 from FIG. 1), that has a plurality of tabs (e.g., the plurality oftabs 22 from FIG. 1). For example, a tab in the plurality of tabs 22from FIG. 1 may contact the first roller when traveling in thelongitudinal direction (e.g., −X-direction) and be guided laterally(e.g., in the +Y-direction) to the guide face 212 of the guide/restrainthead 210, and then contact the second roller 216 and slide off theguide/restraint head 210. Then, in accordance with various embodiments,an adjacent tab in the plurality of tabs 22 from FIG. 1 may contact thefirst roller 214 and the process may continue. Thus, in accordance withvarious embodiments, the first roller 214 and the second roller 216 maybe configured to reduce wear of the guide/restraint head 210 duringloading of a cargo compartment, in accordance with various embodiments.

In various embodiments, the anti-rollout assembly 200, as disclosedherein, provides for a wider guide/restraint head 210. In this regard,the retracting and extending of the guide/restraint head 210 being alongthe lateral direction (e.g., +/−Y-direction), a width of theguide/restraint head 210 is no longer limited by a depth of the housing240. In various embodiments, with brief reference to FIG. 2, byretracting and extending of the guide/restraint head 210 along thelateral direction, a single guide/restraint head may extend across anentire length or substantially an entire length of an entranceway 60, inaccordance with various embodiments.

Referring now to FIG. 5A, a cross-sectional view of the anti-rolloutassembly 200 in a raised state is illustrated, in accordance withvarious embodiments. In various embodiments, the anti-rollout assembly200 is biased into a raised state. In this regard, the guide/restrainthead 210 is pivotably coupled to the housing 240 via a torsion spring250, or the like. In this regard, the torsion spring 250 is configuredto bias the guide/restraint head 210 in an upward position, asillustrated in FIG. 5A.

In various embodiments, when the anti-rollout assembly 200 is in theraised position, the locking system 230 is configured to lock theguide/restraint head 210 in a vertical position. In this regard, thelocking link 232 interfaces with a mating surface 218 of theguide/restraint head 210 in response to the anti-rollout assembly beingin a raised state. In various embodiments, the locking link 232 wouldprevent a lateral force exerted on guide face 212 of the guide/restrainthead 210 from a pallet (e.g., pallet 20 from FIG. 1) from causing theanti-rollout assembly 200 to retract. Thus, the locking system 230 isconfigured to ensure the guide/restraint head 210 remains raised toguide a pallet (e.g., pallet 20 from FIG. 1) after the pallet is on andwithin the entranceway 60 from FIG. 2, in accordance with variousembodiments.

In various embodiments, the locking link 232 may comprise a tab 238configured to interface with the pin 236 of the locking system 230, whenthe anti-rollout assembly is in the raised state. In variousembodiments, the tab 238 and pin 236 interface may act as a redundantlocking mechanism for the anti-rollout assembly 200, in accordance withvarious embodiments.

In various embodiments, the housing 240 defines a cavity 244 disposedtherein. In various embodiments, the cavity 244 is configured to receivethe guide/restraint head 210, the overridable trigger 220, and thelocking system 230 therein. In this regard, in response to a pallet(e.g., pallet 20 from FIG. 1) rolling laterally into the overridabletrigger 220, the overridable trigger 220, the locking system 230, andthe guide/restraint head 210 are stowed in the cavity 244, as describedfurther herein.

Referring now to FIGS. 5B-5D, a cross-sectional view of the anti-rolloutassembly 200 along section A-A from FIG. 4 during retraction from apallet (e.g., pallet 20 from FIG. 1) rolling over the anti-rolloutassembly in a lateral direction (e.g., the +Y-direction) is illustratedin accordance with various embodiments. In various embodiments, inresponse to an initial force on the overridable trigger 220 in a lateraldirection (e.g., Y-direction), the drive link 234 moves laterally towardthe guide/restraint head 210, the pin 236 travels over the tab 238 ofthe locking link 232 driving the locking link downward away from themating surface 218 of the guide/restraint head 210. In this regard, thepin 236 and the tab 238 interface may ensure that the locking link 232does not maintain contact with the mating surface 218 of theguide/restraint head 210 when the guide/restraint head 210 is supposedto be retracting, as illustrated in FIG. 5B. In various embodiments, thepin 236 is configured to rotate about a longitudinal axis defined by thepin 236. In this regard, the pin 236 may rotate when traveling over thetab 238, which may prevent wear of the pin 236 and/or the tab 238 duringuse of the anti-rollout assembly, in accordance with variousembodiments. Although the pin 236 is described as being configured torotate, the pin 236 is not limited in this regard. For example, the pin236 may be stationary and/or configured to slide, in accordance withvarious embodiments.

In various embodiments, as the force of the cargo (e.g., cargo 16 fromFIG. 1) continues to drive the overridable trigger 220 in a clockwisedirection, the drive link 234 drives the guide/restraint head 210 atcoupling 235 about the torsion spring 250 in a direction opposite to thebias of the torsion spring 250, causing the guide/restraint head 210 torotate counterclockwise into the cavity 244 of the housing 240 asillustrated in FIG. 5C. In various embodiments, the coupling 235 createsa moment arm measured from the torsion spring 250.

In various embodiments, the guide/restraint head 210 further comprisesan aperture 211 disposed between the mating surface 218 and the coupling235. In various embodiments, the aperture 211 may allow the locking link232 an area to travel through during the retracting to prevent thelocking link 232 from contacting the guide/restraint head 210.

In various embodiments, in response to a cargo being entirely or nearlyentirely over the anti-rollout assembly, as illustrated in FIG. 5D, theguide/restraint head 210, the overridable trigger 220, and the lockingsystem 230 are all stored in the housing 240, in accordance with variousembodiments. In this regard, a downward force from the cargo (e.g.,cargo 16 from FIG. 1), may maintain the anti-rollout assembly in theretracted state (e.g., FIG. 5D), until the cargo passes the overridabletrigger 220, at which point the torsion spring 250 will begin to biasthe anti-rollout assembly towards the raised state, causing theanti-rollout assembly to move from a FIG. 5D position to a FIG. 5Cposition to a FIG. 5B position, and back to a FIG. 5A position, inaccordance with various embodiments.

Referring now to FIG. 6, a cross-sectional view of the anti-rolloutassembly 200 from FIG. 4 is illustrated, in accordance with variousembodiments. In various embodiments, drive link 234 is slidingly coupledto the guide/restraint head 210 at the coupling 235 of the lockingsystem 230. In this regard, a pin 237 may be disposed through theguide/restraint head 210 and through a slot 239 in the drive link 234,causing the driving link to move a certain distance before driving theguide/restraint head 210 to rotate inward. Thus, in various embodiments,the slot 239 may ensure the locking link 232 is rotated out of the wayof the mating surface 218 before driving the guide/restraint head 210inward.

In various embodiments, the anti-rollout assembly 200 may furthercomprising a locking mechanism configured to lock the anti-rolloutassembly 200 in a retracted state. For example, the anti-rolloutassembly 200 may include a latch configured to extend over theoverridable trigger to keep the anti-rollout assembly 200 in a retractedstate for unloading the cargo handling system 50 from FIG. 2. In variousembodiments, the locking mechanism may be any locking mechanism known inthe art, such as a latch, a lock for the torsion spring, or the like.

Benefits, other advantages, and solutions to problems have beendescribed herein with regard to specific embodiments. Furthermore, theconnecting lines shown in the various figures contained herein areintended to represent exemplary functional relationships and/or physicalcouplings between the various elements. It should be noted that manyalternative or additional functional relationships or physicalconnections may be present in a practical system. However, the benefits,advantages, solutions to problems, and any elements that may cause anybenefit, advantage, or solution to occur or become more pronounced arenot to be construed as critical, required, or essential features orelements of the disclosure. The scope of the disclosure is accordinglyto be limited by nothing other than the appended claims, in whichreference to an element in the singular is not intended to mean “one andonly one” unless explicitly so stated, but rather “one or more.”Moreover, where a phrase similar to “at least one of A, B, or C” is usedin the claims, it is intended that the phrase be interpreted to meanthat A alone may be present in an embodiment, B alone may be present inan embodiment, C alone may be present in an embodiment, or that anycombination of the elements A, B and C may be present in a singleembodiment; for example, A and B, A and C, B and C, or A and B and C.Different cross-hatching is used throughout the figures to denotedifferent parts but not necessarily to denote the same or differentmaterials.

Systems, methods and apparatus are provided herein. In the detaileddescription herein, references to “one embodiment,” “an embodiment,”“various embodiments,” etc., indicate that the embodiment described mayinclude a particular feature, structure, or characteristic, but everyembodiment may not necessarily include the particular feature,structure, or characteristic. Moreover, such phrases are not necessarilyreferring to the same embodiment. Further, when a particular feature,structure, or characteristic is described in connection with anembodiment, it is submitted that it is within the knowledge of oneskilled in the art to affect such feature, structure, or characteristicin connection with other embodiments whether or not explicitlydescribed. After reading the description, it will be apparent to oneskilled in the relevant art(s) how to implement the disclosure inalternative embodiments.

Furthermore, no element, component, or method step in the presentdisclosure is intended to be dedicated to the public regardless ofwhether the element, component, or method step is explicitly recited inthe claims. No claim element herein is to be construed under theprovisions of 35 U.S.C. 112(f) unless the element is expressly recitedusing the phrase “means for.” As used herein, the terms “comprises,”“comprising,” or any other variation thereof, are intended to cover anon-exclusive inclusion, such that a process, method, article, orapparatus that comprises a list of elements does not include only thoseelements but may include other elements not expressly listed or inherentto such process, method, article, or apparatus.

Finally, it should be understood that any of the above describedconcepts can be used alone or in combination with any or all of theother above described concepts. Although various embodiments have beendisclosed and described, one of ordinary skill in this art wouldrecognize that certain modifications would come within the scope of thisdisclosure. Accordingly, the description is not intended to beexhaustive or to limit the principles described or illustrated herein toany precise form. Many modifications and variations are possible inlight of the above teaching.

What is claimed is:
 1. An anti-rollout assembly, comprising: a housingdefining a cavity; a guide/restraint head pivotably coupled to thehousing at a first end of the cavity; an overridable trigger pivotablycoupled to the housing at a second end of the cavity, the second endopposite the first end; and a locking system operably coupled to theguide/restraint head and the overridable trigger, the locking systemconfigured to bias the guide/restraint head into an upright position,the locking system configured to retract the guide/restraint head intothe cavity in response to a first lateral force driving the overridabletrigger.
 2. The anti-rollout assembly of claim 1, wherein the lockingsystem further comprises a locking link and a driving link.
 3. Theanti-rollout assembly of claim 2, wherein the driving link is pivotablycoupled to the overridable trigger and slidingly coupled to theguide/restraint head.
 4. The anti-rollout assembly of claim 3, whereinthe locking link is pivotably coupled to the housing and configured tointerface with a mating surface of the guide/restraint head when theguide/restraint head is in a raised state.
 5. The anti-rollout assemblyof claim 2, wherein the locking system further comprises a pin rotatablycoupled to the driving link, the pin configured to interface with a tabon the locking link in response to the anti-rollout assembly being in araised state.
 6. The anti-rollout assembly of claim 5, wherein the pinis configured to drive the locking link down in response to rolling overthe tab during retraction of the guide/restraint head.
 7. Theanti-rollout assembly of claim 2, wherein: the guide/restraint headcomprises a guide face; and the locking link locks the guide/restrainthead in the upright position in response to a second lateral force beingexerted on the guide face.
 8. The anti-rollout assembly of claim 7,wherein the guide/restraint head further comprises a first roller on afirst longitudinal end of the guide/restraint head and a second rolleron a second longitudinal end of the guide/restraint head.
 9. Theanti-rollout assembly of claim 8, wherein the first roller is configuredto guide a tab of a pallet toward the guide face in response to thepallet traveling longitudinally along a cargo deck.
 10. An anti-rolloutsystem for use in a cargo handling system, the anti-rollout systemcomprising: a cargo deck having an entranceway; and an anti-rolloutassembly coupled to the cargo deck and disposed proximate theentranceway, the anti-rollout assembly being biased towards a raisedposition, the anti-rollout assembly configured to retract into anoverridable position in response to a cargo traveling over theanti-rollout assembly during loading, the anti-rollout assemblyconfigured to arise to the raised position in response to the cargotraveling past the anti-rollout assembly in a first direction.
 11. Theanti-rollout system of claim 10, wherein the anti-rollout assemblyfurther comprises: a first overridable trigger disposed proximate theentranceway; a first guide/restraint head having a first guide facedefining the first direction when the first guide/restraint head is in araised state, the first guide/restraint head disposed distal to thefirst overridable trigger in the lateral direction; a second overridabletrigger disposed distal to the first guide/restraint head in the lateraldirection; and a second guide/restraint head disposed distal to thesecond overridable trigger in the lateral direction.
 12. Theanti-rollout system of claim 11, wherein: the first overridable triggeris configured to retract the first guide/restraint head in response to afirst lateral force being disposed on the first overridable trigger; andthe second overridable trigger is configured to retract the secondguide/restraint head in response to a second lateral force beingdisposed on the second overridable trigger.
 13. The anti-rollout systemof claim 12, further comprising a plurality of the anti-rollout assemblyspaced longitudinally along the entranceway.
 14. The anti-rollout systemof claim 11, wherein the anti-rollout assembly further comprises a firstlocking system and a second locking system, the first locking systemoperably coupling the first overridable trigger to the firstguide/restraint head, the second locking system operably coupling thesecond overridable trigger to the second guide/restraint head.
 15. Theanti-rollout system of claim 10, wherein the anti-rollout assemblyfurther comprises: a housing coupled to the cargo deck, the housingdefining a cavity; a guide/restraint head pivotably coupled to thehousing; an overridable trigger pivotably coupled to the housing, theoverridable trigger configured to rotate in a first direction inresponse to a first lateral force driving the overridable trigger,wherein the guide/restraint head is configured to rotate in a seconddirection in response to the overridable trigger rotating in the firstdirection, the first direction being opposite the second direction. 16.The anti-rollout system of claim 15, wherein the guide/restraint head isdriven into the overridable position in response to the cargo travelingover the overridable trigger.
 17. A method of using an anti-rolloutsystem, the method comprising: sliding a cargo in a lateral directionthrough an entranceway of a cargo handling system; rotating anoverridable trigger of an anti-rollout assembly in a first direction inresponse to the cargo exerting a lateral force on the overridabletrigger; rotating a guide/restraint head of the anti-rollout assembly ina second direction in response to the overridable trigger rotating thefirst direction, the first direction being opposite the seconddirection; retracting the anti-rollout assembly into an overridableposition in response to the cargo traveling over the anti-rolloutassembly; and arising the anti-rollout assembly into a raised positionin response to the cargo passing the anti-rollout assembly in thelateral direction.
 18. The method of claim 17, further comprising:sliding the cargo in a longitudinal direction through a cargocompartment; and guiding a tab of a pallet of the cargo to a guide faceof the guide/restraint head in response to sliding the cargo in thelongitudinal direction.
 19. The method of claim 17, wherein theanti-rollout assembly is locked in the raised position in response tothe cargo passing the anti-rollout assembly in the lateral direction.20. The method of claim 17, wherein the anti-rollout assembly comprisesa locking system operably coupled to the guide/restraint head and theoverridable trigger.